Messages in this thread Patch in this message | | | Date | Mon, 21 Mar 2016 04:17:20 -0700 | From | tip-bot for Dongsheng Yang <> | Subject | [tip:sched/urgent] sched/cpuacct: Rename parameter in cpuusage_write() for readability |
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Commit-ID: 1a736b77a3f50910843d076623204ba6e5057dc1 Gitweb: http://git.kernel.org/tip/1a736b77a3f50910843d076623204ba6e5057dc1 Author: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> AuthorDate: Mon, 21 Dec 2015 19:14:42 +0800 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Mon, 21 Mar 2016 10:59:29 +0100
sched/cpuacct: Rename parameter in cpuusage_write() for readability
The name of the 'reset' parameter to cpuusage_write() is quite confusing, because the only valid value we allow is '0', so !reset is actually the case that resets ...
Rename it to 'val' and explain it in a comment that we only allow 0.
Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: cgroups@vger.kernel.org Cc: tj@kernel.org Link: http://lkml.kernel.org/r/1450696483-2864-1-git-send-email-yangds.fnst@cn.fujitsu.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- kernel/sched/cpuacct.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/kernel/sched/cpuacct.c b/kernel/sched/cpuacct.c index dd7cbb5..9c2bbf7 100644 --- a/kernel/sched/cpuacct.c +++ b/kernel/sched/cpuacct.c @@ -145,13 +145,16 @@ static u64 cpuusage_read(struct cgroup_subsys_state *css, struct cftype *cft) } static int cpuusage_write(struct cgroup_subsys_state *css, struct cftype *cft, - u64 reset) + u64 val) { struct cpuacct *ca = css_ca(css); int err = 0; int i; - if (reset) { + /* + * Only allow '0' here to do a reset. + */ + if (val) { err = -EINVAL; goto out; }
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